implement a more generic ShowList method

apt-get is displaying various lists of package names, which until now it
was building as a string before passing it to ShowList, which inserted
linebreaks at fitting points and showed a title if needed, but it never
really understood what it was working with. With the help of C++11 the
new generic knows not only what it works with, but generates the list on
the fly rather than asking for it and potentially discarding parts of
the input (= the non-default verbose display). It also doubles as a test
for how usable the CacheSets are with C++11.

(Not all callers are adapted yet.)

Git-Dch: Ignore

1 files changed, 2 insertions, 2 deletions

diff --git a/po/de.po b/po/de.po
index d4ca0d5a0..0b363c8de 100644
--- a/po/de.po
+++ b/po/de.po
@@ -1364,8 +1364,8 @@ msgstr "Die folgenden zurückgehaltenen Pakete werden verändert:"
 
 #: apt-private/private-output.cc:688
 #, c-format
-msgid "%s (due to %s) "
-msgstr "%s (wegen %s) "
+msgid "%s (due to %s)"
+msgstr "%s (wegen %s)"
 
 #: apt-private/private-output.cc:696
 msgid ""